[vchkpw] Error in smtp log

[Keng Heng]

Dear All, I got this error in my mail server smtp log for all the incoming mails, how to resolve this:   @400000003ed815531c3a4ba4 new msg 143948 @400000003ed815531c3a6ae4 info msg 143948: bytes 1344 from <[EMAIL PROTECTED]om> qp 841 uid 503 @400000003ed815531c3a8254 starting delivery 3: msg 143948 to local domain.com[EMAIL PROTECTED]om @400000003ed815531c3a9dac status: local 1/100 remote 0/120 @400000003ed815531cb1cd64 delivery 3: success: DSorry,_I_couldn't_find_any_host_named_--._(#5.1.2)/ @400000003ed815531cb1f85c status: local 0/100 remote 0/120 @400000003ed815531cb207fc end msg 143948